Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e36a735c76c9094…

MALICIOUS

PDF

75.0 KB Created: 2021-03-30 18:29:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 7fd29af1697e14c5365c3d011e915a24 SHA-1: e867fb00ee222ba9f4bba95d1a5d214425ce9e35 SHA-256: 1e36a735c76c9094c3a5abcc7453a182a9a6e3f67c6b7964e646254e3b60ac7e
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains an embedded URI pointing to a suspicious domain, likely intended for phishing or malware distribution. The presence of multiple external URLs further supports the phishing lure, aiming to redirect the user to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://midufefew.ru/award?keyword=aletha+solter+books+pdf PDF link annotation
    • https://cdn.sqhk.co/gagowuname/hi2Zic9/in_the_rooms_meeting_verification.pdfIn PDF document text
    • https://cdn.sqhk.co/pakebisas/idgc3ji/rotator_cuff_exercises_youtube.pdfIn PDF document text
    • https://cdn.sqhk.co/xogovofofi/jb2iab6/epic_games_fortnite_competitive_leaderboard.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479210/normal_5fea2a033f744.pdfIn PDF document text
    • https://cdn.sqhk.co/tujuvemevo/dxHifgj/tamil_love_status_video_whatsapp_group_link.pdfIn PDF document text
    • https://cdn.sqhk.co/naxenunovus/hiZgjhg/87089703168.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406464/normal_600b265848df2.pdfIn PDF document text
    • https://cdn.sqhk.co/pumibavi/f7ifjiM/dog_fighting_ring_busted_in_missouri_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/dasekizob/avqgdhc/definition_of_old_age.pdfIn PDF document text
    • https://cdn.sqhk.co/nodomepe/4d9jeRN/top_100_stocks_under_50.pdfIn PDF document text
    • https://cdn.sqhk.co/puvubuzu/bhdgins/ship_driving_games_y8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365621/normal_603224cc24f15.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wemazun/72788845603.pdfIn PDF document text
    • https://s3.amazonaws.com/wexukufedepim/kitchen_hood_size_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76f83ea0-c75b-4a94-a4a5-1b031c07649b/what_test_strips_work_with_relion_prime.pdfIn PDF document text
    • https://s3.amazonaws.com/xeroguru/informacion_sobre_los_astronautas_mexicanos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad7614b9-a377-49bf-ab6e-d8dbcf2941df/felufunezapotezazawox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa927213-6e52-4778-a539-f070380bac07/thetford_aqua_magic_iv_blade_replacement.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e72d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE72D 5324 bytes
SHA-256: 0bd4f65798572a1eb7504beb71ce853857fcc9eec570d0fb2fe2a52a151eaa3a
font_01_sfnt_off0000f937.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF937 11168 bytes
SHA-256: 80f26796a1f75a9f5fe31f9b4938e9600adec11d38765dd9a3554623bc943349